For certain devices, you can also change some settings to turn on "Ok Google" detection outside the Google app:

Turn on "From any screen" or "Always on."

Follow the instructions to teach Google what your voice sounds like.Note: "Always on" isn't supported in all languages. If you're unable to turn this feature on, your language may not be supported.

Keep in mind, the "From any screen" setting may prevent other voice services that use hotwords or wake up commands from working. For example, if you have a Samsung S6 and turn on S-Voice to use the wake up command "Hi Galaxy," it may not work if "From any screen" is turned on.

When you turn on "Ok Google," there are a few settings you might be able to change depending on your device. Here’s what the terms mean:

When you can say "Ok Google":

From any screen: You can say "Ok Google" from any screen on your device if the screen is on or the device is charging. This isn't available in all languages.

Always-on: You can say "Ok Google" whether your screen is on or off.

What happens when your screen is locked:

​Unlock with Voice Match: When you say "Ok Google" from a secure lock screen and we're able to recognize the sound of your voice, you can ask Google to do things for you or visit sites without having to unlock your device manually.

Personal results: See personal results for your voice searches, even when your device is locked.

Retrain voice model: Reteach Google the sound of your voice. Try this if Google isn’t recognizing your voice when you say "Ok Google." If you don't see this setting, make sure "From any screen" or "Always-on" is turned on.

Note: The "From any screen" setting may prevent other voice services that use hotwords or wake up commands from working. For example, if you have a Samsung S6 and turn on S-Voice to use the wake up command "Hi Galaxy," it may not work if "From any screen" is turned on.

Use voice search without "Ok Google"

Troubleshoot issues

The "Ok Google" on every screen setting is not available for Moto X and some older Android devices. If you're using a Moto X and you have Touchless Controls turned on, you can say "Ok Google" from any screen without changing any settings in the Google app.